Policy "one-size-fits-all" injury and polyurethane industry
Policy "one-size-fits-all" injury and polyurethane industry
This period of time, China polyurethane industry association deputy secretary-general li jianbo, every opportunity will be on him to take part in every industry symposium on BBS and pain, the new industry standard for the unfair treatment of polyurethane materials. He knew, though, that the problem "can't be solved for a while, until the next standard." The "unfair" indicator, in August, was used by the Beijing municipal commission of housing and construction as the sole indicator of substandard polyurethane materials, the oxygen index. However, it is the polyurethane products of many polyurethane products, especially some leading enterprises, that fail to meet such a technical index, thus exposing the chaos of the Beijing polyurethane market. Had been to Beijing this newspaper also has both polyurethane thermal insulation wall materials for building energy efficiency retrofit of market chaos were reported (see our November 18 D1 version of the "heart-warming project" encounter "chilling" - cheap inferior insulation wall materials break into Beijing "). With the deepening of the survey, China real estate news reporter discovery, in this round began in March 2011 published the "65" (that is issued by the ministry of public security fire department of the civil building external thermal insulation materials on further clear fire supervision and management of the relevant requirements of the notice ", commonly known as the "65") of the industry reshuffle and integration, in addition to such problems as lack of self-discipline, industry malignant competition, relevant policy inelastic, twitched and lack of scientific reasoning is also a cause of the industry turmoil. The industry standard for the "oxygen index" is the construction materials and product combustion performance classification (gb8624-2012), which began in October. Zhao chenggang, director of the department of fire prevention and building materials at the ministry of public security in sichuan, said the oxygen index has a long history as a reference indicator for the combustion performance of thermal insulation materials. Because of the convenience of oxygen index detection, small experiment scale and low detection cost, it is widely used in combustion performance detection, but can only be one of the indicators. Cheng-gang zhao, send the draft of the standard in the ministry of public security fire department, B1 level oxygen index value is greater than or equal to 28, after the ministry of public security fire department finally determine the B1 level greater than or equal to 30 oxygen index of the standard. "The oxygen index does not fully reflect the combustion performance of the insulation material, but it is only a combustion performance parameter added to the new standard." Zhao chenggang told reporters. While the oxygen index is only one indicator, it has a "veto power". Li said that in the new standard, as long as the oxygen index is less than 30, it cannot be considered as a class B1 material. He said it was "unscientific" and "unreasonable" to use the same indicator for "one-size-fits-all". "Different materials also reach the B1 level, and the oxygen index is not consistent. The EPS (foamed polystyrene), XPS extruded (board) as an example, the material reach the B1 level, its oxygen index can be easily more than 32, but it is difficult to reach 30, polyurethane unless the change process, but after change process, although oxygen index reach the standard, but other physical and chemical properties, such as insulation resistance, strong will, at the same time the cost will also rise sharply." Li told reporters that compared with EPS, XPS and other materials, the low oxygen index of polyurethane does not mean low fireproof performance. "Hard foam polyurethane is a thermosetting thermal insulation material. When the fire burns, the surface of the polyurethane will form carbonized layer. The carbonization layer can prevent the flame from spreading. EPS and XPS are thermoplastic materials, which can be melted and dripped when caught in a fire, which can also be burned. "The eu rules on the polyurethane oxygen index are 28 and are not included in the mandate." Li jianbo said, in the old version of the building materials and products of combustion performance classification, also is not the concept of oxygen index, and the introduction of oxygen index indicators, especially the rules on the oxygen index B1 level material must be greater than or equal to 30 high standards, will lead to a strange phenomenon: some materials such as polyurethane on combustion performance is completely can to B1 level standard, but it cannot meet the oxygen index reached the standard of 30; However, some of the insulation materials can meet the requirements of the oxygen index. Li jianbo further pointed out that because of the oxygen index test method is more convenient, cost is low, actually became the most direct detection, supervision departments of detection means, it is easy to lead to real B1 level standard material was kicked out, and the unqualified material can satisfy the standard of oxygen index instead be "qualified" material. Ji guangji, a researcher at the institute of building fire research at the Chinese academy of architectural sciences, also believes that the oxygen index is a bit high for polyurethane. "The key issue is that the fire is not only caused by thermal insulation material, should put the building as a system to consider, how the fire performance of the whole system, construction management and daily maintenance are very critical, insisting that the fire rating of building material itself." "Actually, the material itself is ok, the key wants to use right, use good." Li jianbo said, site management confusion, unqualified not poor regulation compliance products wall, is the main factor that caused the fire, not a problem to the board to material, insisting that system of high standards of industry policy, is a kind of "aggression". In fact, it is not the first time that such policies have been "overheated" in the insulation wall. On March 14, 2011, at the end of 2010, after Shanghai jiaozhou road fire fire become social issues related to building materials, the ministry of public security fire department under pressure issued "about further clear civil building external thermal insulation material of fire supervision and management of the relevant requirements of the notice (male [2011] no. 2011, commonly known as" the no. 65 "), the so-called history the most severe fire ban regulations, civil building exterior insulation materials with the combustion performance is A level of material, otherwise will not be acceptance through. The implementation of "no. 65" has been a thunderbolt, and the construction of the insulation industry has exploded, and there has been a lot of reaction in the industry. In fact, "no. 65" also promotes the development of polyurethane industry to some extent. It is understood that after 2007, polyurethane only began to be widely used in the exterior insulation of buildings, and the "no. 65 text" also contributed to the development of this industry. Season in its told China real estate news reporter, "no. 65" issued after the polyurethane industry with A "complex a-class" "chip" - pu after process improvement can achieve previously imposed an old standards mentioned in "composite grade A standard. In the case of serious shortage of material capacity of grade A, "compound A" has been recognized by relevant departments in some provinces. Therefore, to achieve "compound a-class" under the premise of this standard, pu heat preservation wall materials began to rapid development, production capacity from 3 million tons/year in 2011 also jumped to 6 million tons/year this year. Li jianbo said that the regulations of "no. 65" are too strict, and that the production capacity of the inorganic thermal insulation materials that meet the requirements of fire prevention A in the market can be seriously inadequate. And local governments in response to the "no. 65" also is not the same, "Shanghai, jiangsu, fuzhou and other provinces and cities have introduced rules, rules of civil building exterior insulation materials burning performance upgrade as a-class non-combustible material; Jilin, taiyuan, xinjiang and other provinces and regions have stipulated that flammable materials should be banned, and non-combustible or non-combustible materials shall be used in accordance with the provisions. After the introduction of "no. 65", some cities have made changes to the design and construction of insulation materials for construction projects. However, many cities have agreed to continue construction after improving the fire safety performance of the bb2 - class combustible materials used in the original design and reaching the level B1 level of refractory materials. More projects are on lockdown because they can't find the right insulation. And in December 2011, the state council issued "the country is sent [2011] no. 46", relaxed requirement for building exterior insulation materials fire rating "different implementation is still around, some of the '65', to perform the previous' male pass word [2009] no. 46, lead to the design and construction of the external thermal insulation material chaos." Ji told reporters. Policy of "one size fits all" leading industry Whether Shanghai jiaozhou road after the fire, overdoing "no. 65", or the dispute of oxygen index, the enterprise can only follow the policy of the baton, "this is no way, this is the national standard, we can only obey." A polyurethane manufacturer's director told reporters. "The fire requirement is so high and the pressure is so great that some of your industry's sacrifices should be made." The head of the relevant department said to li jianbo. But li insists that such indicators are unfair to polyurethane and are unscientific. Li jianbo said, in terms of the comprehensive performance of thermal insulation and fire prevention, polyurethane is a advantage, is a prospect of application of thermal insulation material, should not because a standard limits the development of good business. WeiHua nanjing red polaroid co., LTD., vice President, also thinks the oxygen index itself is no problem, but on the oxygen index indicators, all the insulation materials are put together to compare not science. "Industry standards should be made by industry experts and companies, not by executive orders or by the will of the chief executive." Shandong holy spring chemical industry co., LTD. Sales manager Zhang Zhuang said that the improvement of oxygen index standard for enterprise influence is very big still, "from 28 to 30, increase the two percent, we have technically and cost of inputs". At the same time, Mr Zhang said he was most concerned about whether the executive level would guarantee regulatory strength. "We still want the industry to be more regulated, and we have a competitive advantage in this big business. Don't be like 'no. 65,' although the standards are strict, but they can't be done, resulting in a much more chaotic market. It is understood that "no. 65" has a great impact on the market. On the one hand, the manufacturers who produce the b1-level insulation materials face the risk of failure if they are executed by documents. In fact, because level A is difficult to achieve, A lot of substandard products start flooding the market. Foaming cement, heat preservation mortar and other already eliminated physical properties, thermal insulation performance is not enough, but fire protection performance can go to A grade of products to return to the market. "It's a ridiculous thing to see in an industry." "Mr Zhang said. "The 'one-size-fits-all' policy has left companies and industries at a loss," wei told reporters. Companies have just invested 1 billion yuan in a new material industry park, because "one size fits all" can become a bubble, which is a huge waste of industry. We want to keep policy continuity so we can avoid industry turmoil and corporate losses."
